208515080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{881}}^1$

素因数の和:1050

約数の個数: 64

約数和(自身を含む): 482312880

約数和(自身を除く): 273797800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 97, 122, 194, 244, 305, 388, 485, 488, 610, 776, 881, 970, 1220, 1762, 1940, 2440, 3524, 3880, 4405, 5917, 7048, 8810, 11834, 17620, 23668, 29585, 35240, 47336, 53741, 59170, 85457, 107482, 118340, 170914, 214964, 236680, 268705, 341828, 427285, 429928, 537410, 683656, 854570, 1074820, 1709140, 2149640, 3418280, 5212877, 10425754, 20851508, 26064385, 41703016, 52128770, 104257540, 208515080]

約数ペア:

[(1, 208515080), (2, 104257540), (4, 52128770), (5, 41703016), (8, 26064385), (10, 20851508), (20, 10425754), (40, 5212877), (61, 3418280), (97, 2149640), (122, 1709140), (194, 1074820), (244, 854570), (305, 683656), (388, 537410), (485, 429928), (488, 427285), (610, 341828), (776, 268705), (881, 236680), (970, 214964), (1220, 170914), (1762, 118340), (1940, 107482), (2440, 85457), (3524, 59170), (3880, 53741), (4405, 47336), (5917, 35240), (7048, 29585), (8810, 23668), (11834, 17620)]